Overview
The OPA187IDR from Texas Instruments is a high-precision, low-power operational amplifier that utilizes auto-zeroing techniques to provide exceptional performance. This device is part of the OPAx187 series, known for its low offset voltage and near zero drift over time and temperature. The OPA187IDR is available in an 8-pin SOIC package and is designed for a wide range of applications requiring high precision and low noise.
These miniature amplifiers offer high-input impedance and rail-to-rail output swing within 5 mV of the rails into high-impedance loads. The input common-mode range includes the negative rail, and the device can operate with either single or dual supplies in the range of 4.5 V to 36 V (±2.25 V to ±18 V).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 8 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Offset Voltage (VOS) | ±1 (typ), ±15 (max) | µV |
| Offset Drift | 0.001 (typ), 0.015 (max) | µV/°C |
| Noise | 15 | nV/√Hz |
| PSRR | 160 | dB |
| CMRR | 140 | dB |
| AOL | 160 | dB |
| Quiescent Current | 100 | µA |
| Supply Voltage | ±2.25 V to ±18 V | - |
| Bias Current | 100 (typical) | pA |
Key Features
- Low offset voltage: 10 µV (maximum)
- Zero drift: 0.001 µV/°C
- Low noise: 15 nV/√Hz
- High PSRR: 160 dB
- High CMRR: 140 dB
- AOL: 160 dB
- Low quiescent current: 100 µA
- Wide supply voltage range: ±2.25 V to ±18 V
- Rail-to-rail output operation
- Input includes negative rail
- Low bias current: 100 pA (typical)
- EMI filtered inputs
- Microsize packages
Applications
- Analog input modules
- Mixed modules (AI, AO, DI, DO)
- Flow transmitters
- Pressure transmitters
- Test and measurement equipment
- Semiconductor testing and manufacturing
- Process analytics (pH, gas, concentration, force, and humidity)
Q & A
- What is the OPA187IDR?
The OPA187IDR is a high-precision, low-power operational amplifier from Texas Instruments, part of the OPAx187 series.
- What package is the OPA187IDR available in?
The OPA187IDR is available in an 8-pin SOIC package.
- What is the operating temperature range of the OPA187IDR?
The operating temperature range is -40°C to 125°C.
- What is the maximum offset voltage of the OPA187IDR?
The maximum offset voltage is 10 µV.
- What is the offset drift of the OPA187IDR?
The offset drift is 0.001 µV/°C.
- What is the noise level of the OPA187IDR?
The noise level is 15 nV/√Hz.
- What is the PSRR of the OPA187IDR?
The PSRR is 160 dB.
- Can the OPA187IDR operate with single or dual supplies?
Yes, it can operate with either single or dual supplies in the range of 4.5 V to 36 V (±2.25 V to ±18 V).
- What are some common applications of the OPA187IDR?
Common applications include analog input modules, mixed modules, flow and pressure transmitters, test and measurement equipment, semiconductor testing and manufacturing, and process analytics.
- Does the OPA187IDR have EMI filtered inputs?
Yes, the OPA187IDR has EMI filtered inputs.
